Commits
Wei Fang committed d0388c0e255
md:raid1: fix a dead loop when read from a WriteMostly disk [ Upstream commit 816b0acf3deb6d6be5d0519b286fdd4bafade905 ] If first_bad == this_sector when we get the WriteMostly disk in read_balance(), valid disk will be returned with zero max_sectors. It'll lead to a dead loop in make_request(), and OOM will happen because of endless allocation of struct bio. Since we can't get data from this disk in this case, so continue for another disk. Signed-off-by: Wei Fang <fangwei1@huawei.com> Signed-off-by: Shaohua Li <shli@fb.com> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>